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Home / News / Industry News / Liquid dewar cylinders are used to store cryogenic gas

Liquid dewar cylinders are used to store cryogenic gas

Date:2022-10-21
Liquid dewar cylinders are used to store cryogenic gas. They come in both a solid and liquid form. The liquid level indicator on top of the cylinders is not very accurate or easy to read. Since most gas distribution systems use pressure to change the cylinder, false low-pressure readings can cause lab personnel to remove containers that still contain about 25% of the liquid.
Liquid dewar cylinders come in many different sizes and styles and are vacuum jacketed and insulated to keep the contents safe. These cylinders can provide gas through a built-in vaporizer, or liquid under internal vapor pressure. The user must wear the appropriate PPE when filling or using these cylinders. These cylinders are regularly relieved of internal pressure.
Liquid dewar cylinders are double-walled vessels that are made of high-quality materials. They are used in laboratories to store liquids with lower boiling points. They have two or three-layered walls to maintain a high vacuum between the layers. This provides good thermal insulation and reduces the rate of the liquid boiling away. They also have systems to manage the gas released during slow boiling.

Welded insulated liquid dewar cylinder

Dewar cylinders are ultra-vacuum insulated stainless steel pressure vessels designed for storage, transportation and use of liquid oxygen, liquid nitrogen, liquid argon or carbon dioxide.
The DPL series containers are vacuum insulated, stainless steel containers designed to store and transport cryogenic liquid oxygen, nitrogen or argon. Containers may be used for over the road transportation of cryogenic fluids, as well as on-site storage and supply in a wide range of applications.
As rugged, long holding time, self-contained gas supply systems, these cylinders are capable of providing contonuous flow rates of up to 350cfh（9.2 cu.m/h）with a delivery pressure of approxomately 100psig (6.9bar/690 kpa)